i have a quarter of a gallon, maybe a little less of O'DONNELL RACING FUEL. we used it to shoot off rockets in the park. this fuel contains a special blend of racing lubricats develped through several years of testing and is especially recommened for high perfomance model engines. this sophisticated blend allows maximum horsepower while actually reducing heat and internal wear.manufactured by PRO BLEND INC, santa fe springs, ca 90670